Investor



L. SONDEREGGER.

, WINDOW CLEANER.

APPLICKTION FILED JUNE 6,1918.

1 ,305,94:8. Putvnfed June 3, 1919.

2 SHE WITNESSES By W I ATTORNEYS L. SONDEREGGERi WINDOW CLEANER.

APPLICATION FILED JUNE 6.19m. 1,305,948. Patented J une 3,1919.

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LEO sonnnnneenn, on NEW YORK, N. Y., ASSIGNOR 0F ONE-HALF 'ro WILLIAM MEYER, on NEW YORK, N. Y.

WINDOW-CLEANER.

Specification of Letters Patent.

Patented June 3, 1919.

Application filed June 6, 1918. Serial No. 238,547.

To all whom it may concern:

Be it known that I, LE0 SONDEREGGER, a citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county of Bronx and State of New York, have invented a new and Improved Window-Cleaner, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved window cleaner more especially designed to permit the user to clean the outer faces of the window panes of the upper andlower sashes. Another object is to permit of readily placing the window cleaner in position on the window and manipulating the cleaner without requiring undue physical exertion on the part of the operator. Another object is to provide a window cleaner which is very simple and durable in construction and is exceedingly light to permit of conveniently handling it and moving it about.

With these and other objects in view, the invention consists of certain novel features of invention as hereinafter shown and described and then specifically pointed out in the claims.

A practical embodimentof the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indi cate corresponding parts in all the views.

Figure 1- is a front elevation of the window cleaner as applied;

Fig. 2 is a transverse section of the win dow with the window cleaner in position thereon;

Fig. 3 is an enlarged sectional side elevation of the window cleaner;

Fig. 4 is an inverted lan View of the 1g. 3;

Fig. 5 is a similar view of the same on the line 55 of Fig. 3;

Fig. 6 is a similar view of the same on the line 3-6 of Fig. 3; and

Fig. 7 is a reduced side elevation of the window cleaner.

The main frame 10 of the window cleaner is made hollow and approximately U-shaped and comprises inner and outer side arms 11 and 12 anda connecting member 13 adapted to rest on the sill 14 of the window so that the side arms 11 and 12 straddle the window sash 15, as plainly shown in Figs. 1 and 2. The connecting member 13 is provided with a depending lug 16 adapted to abut against the outer edge of the window sill 14 to hold the frame 10 against inward movement but to allow of shifting the frame lengthwise of the sill. The portion of the member 13 in engagement with the sill 14 is preferably provided with a lining 17 of felt or other suitable material to prevent marring of the window sill.

In the side arms 11 and 12 are mounted to slide two bars 20 and 21, of which the bar 20 is provided at its outer end with a handle 22, and the bar 21 is provided at its outer end with a wiper shank 23 carrying a wiper 24 adapted to engage the outer face of. the window pane of the sash 15 for cleaning such window pane, as hereinafter more fully explained. The bars 20' and 21 are connected with each other by a cable, cord or a similar flexible connection 30 arranged in such a manner that an outward or inward movement given to the bar 20 produces a corresponding sliding movement of the other bar 21 to permit of engaging the wiper 24 with the entire outer face of the window pane of the sash 15. For the purpose mentioned, the flexible connection 30 is made endless and is attached by suitable clamping means 31 and 32 to the lower inner ends of the bars 20 and 21. The flexible connection 30 passes around pulleys 33 and 34 journaled in the upper portions of the side arms 11 and 12, and also passes around guide pulleys 35, 36 and 37, 38 arranged in the connecting member 13, as plainly indicated in Fig. 3. By the arrangement described an outward movement of the bar 20 in the side arm 11 of the frame 10 causes a corresponding outward sliding movement of the bar 21 in the side arm 12, and in case an inward sliding'movement is given to the bar 20 a corresponding movement is given to the bar 21. v

In order to insure easy sliding movement of the bar 20 in the side arm 11, the inner end of the bar 20 is provided with a guide pulley 40 in engagement with the inner opposite surfaces of the said arm 11, and the latter is provided near its upper end with guide pulleys 41 and 42 to guide the outer portion of the bar 20. The inner end of the bar 21 is provided with a guide pulley 43 and a guide pulley 44 is mounted near the upper end of the side arm 12 to guide the outer portion of the bar 21. The bars 20 and 21 are preferably made of channel iron so as to combine lightness with the desired strength.

In order to permit convenient handl ng and manipulating of the window cleaner, use is made of a rod provided with a right angle pivot 51 journaled in suitable.

bearings 52 attached to the outside of the connecting member 13 of the main frame 10, as plainly shown in Figs. 1 and The rod 50 is provided at its free end with a handle 53 from which extends transversely a bracket 54 carrying a pad 55 of felt or other suitable material adapted to engage the inner face of the pane of the window sash 15. On the pivot 51 is coiled a torsion sprlng bearing with one end 61 against the connecting member 13 and bearing with its other end 62 on the rod 50 so as to swing the rod 50 and the'frame 10 toward each other. A protecting strip 65 of felt orother suitable material is attached to the inner edge of the side arm 12 and the top of the connecting member 13 to prevent marri'ng of the sash when the window cleaner is in use.

The operation is as follows:

In using the device the lower window sash 15 is slightly raised to permit of placing the frame 10 in straddling position relative to the sash and with the connecting member 13 resting on the sill 14:. The operator, having hold of the handles 22 and 53, can now readily move the frame 10 sidewise along the window sill and can impart a swinging motion to the frame and at the same time move the bar 20 outward or inward in the side arm 11 of the main frame thus causing a corresponding movement of the other bar 21 whereby the wiper 21 can be readily moved along the outer face of the window pane in any direction to clean the outer surface of the window pane. It will be noticed that by the arrangement clescribed the operator can readily move the frame 10 into a desired position and slide the rod 21 outward or inward on the side arm 12 so that the wiper 2t reaches every part of the outer face of the window pane or the sash 15. It will further be noticed that by the spring connection between the rod 50 and the frame 10, the latter is counterbalanced owing to the action of the tor sion spring 60 thus permitting the operator to readily swing the main frame into a desired position without undue physical exertion on the part of the operator. It is understood that the torsion spring 60 tends to normally hold the rod 50 close to the side arm 11 of the frame 10. When the device is used the rod 50 is swung to the left (see Fig. 1) thus placing the spring 60 under tension thereby counterbalancing the frame 10' to permit the operator to swing the frame 10 sidewise without undue physical exertion on the part of the operator. It will also be or sliding the bars 20 and 21outward or inward in the corresponding side arms 11 and 12 of themain frame 10. After the lower sash has been cleaned as described, it is raised, and then the upper sash 7 0 is lowered and the outer face of its pane is 'engaged with the wiper 24, andthe above described operation is then repeated to clean the outer face of the upper sash in the same manner as above described relative to the lower sash 15. p I

Having thus described my invention, I claim as new and desire to secure by Letters- Patent 7 1. A window cleaner, comprising an ap-' proximately U-shaped frame having side members and a connecting member, the side members being adapted to straddle the window sash, bars slidable in the "Said'side mem bers, one of the bars having a handle and the other a wiper adapted to wipe the outer face of the pane of the window sash, a connection connecting the said bars with each other to impart a sliding movement to one on imparting a sliding movement to the other, and a spriiig pressed handled rod piv-' oted on the said frame'to allow swinging movement of th'ejsaid frame androd one toward or from the other.

2. A window cleaner, comprising an approximately U-shaped hollow fr'ame'a dapte'd to rest with its bottom member on the sill of a window with one side member outside of the window and the other side member inside of the window, a wiper having abar slidable in the said outer side member of the frame, a handled bar slidableinthe said inner side member, a single flexibleconnection within the said frame connecting the V said wiper bar and the said handled bar with each other to slide the wiper bar lengthwise on its side member of the frameofn irnparting'a sliding movement to'the' said handled bar the said bars moving "simultaneously 'inthe same direction and guiderollers 1 15 journaled in the said frame and around which passes the said flexible connection.

} 3. A window cleaner, comprising a hollow frame approximately U-shaped, a wiper hav- I ing a bar slidable in one ofthe side arms of the said frame, a handledbar sli'dable in the other side arm of the said frame, a single flexible connection within the said. frame and connecting the saidbars with each other,"and

guide rollers journaled in the said frame and 7 guiding the said flexible connection to move the wiper bar inward or outward on impart ing a corresponding inward 'or outward movement to the said handled bar.

4. A window cleaner, comprising an'approximately U-shaped frame having side on manually imparting a sliding movement 10 members and a connecting member, the side to the other, and a spring-pressed handled members being adapted to straddle a winrod pivoted on the said frame to allow dow sash, bars slidable in the said side Inemswinging movement of the said frame and bers, one of the bars having a handle and rod one toward or from the other, the said the other a wiper adapted to wipe the outer rod being provided at its handle with a pad 15 face of the pane of the window sash, a conadapted to engage the inner face of the pane nection connecting the said bars with each of the window sash.

other to impart a sliding movement to one LEO SONDEREGGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

